Home / 13,944.86-19,243.34-7,571.21

Finding the Fourth Proportional to 13,944.86, 19,243.34 and 7,571.21

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Solution

The fourth proportional to 13,944.86, 19,243.34 and 7,571.21 is: 10,447.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.86 : 19,243.34 = 7,571.21 : x
  2. Step 2: Convert to fraction form
    13,944.86/19,243.34 = 7,571.21/x
  3. Step 3: Cross multiply
    13,944.86x = 19,243.34 × 7,571.21
  4. Step 4: Simplify right side
    13,944.86x = 145,695,262.56
  5. Step 5: Solve for x
    x = 145,695,262.56/13,944.86
  6. Step 6: Final answer
    x = 10,447.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.